To keep the water in a pool clean and fresh, a well-adapted mechanical purge system is required. It complements the chemical purification as it removes physical particles that have fallen into the water. Sand filter is the most common form of mechanical cleaning, but there is also a pool filter filter.
The most common mechanical filter for cleaning the water in a pool is a sand filter. No chemicals in the world can remove particles from the water, just kill organisms and make them fall to the bottom. A sand filter, on the other hand, cleans the water from particles in all its sizes. It is possible that the water is led through a cylinder filled with different types of sand via a circulation pump. When the water is led through the sand filter, particles of different sizes will get stuck in the sand bed.
The sand in the filter needs to be replaced every eight to every tenth year to maintain the required standard. However, it requires that the system is backwashed and serviced as instructed. Clearly handled sand filters last less than that.
A complement to the sand filter is UV purification. It's a rather simple but effective way to clean water from bacteria. With good UV cleaning, no chlorine or other disinfectant products are required in the water. This in turn reduces the risk of corrosion in wires and health hazards. However, UV treatment is quite expensive in purchasing.
Instead of sand filters, some pool cleaners have instead cartridge filters. It is a polyester filter made of polyester that keeps the pool clean from particles in the same way as the sand filter does. They last several years if they are managed properly. These pool filters also need to be cleaned regularly, and can be washed with a special detergent. It takes a little more time to clean the cleaning filter compared to a sand filter, and it may be smart to have an extra cartridge filter available when needed.
What causes the water to rotate in the pool and periodically cross the sand- and cleaning filters require a good circulation pump. A good rule of thumb is that all water in a pool should pass through the pump and purification plant five to six times a day. The size and effect of the circulation pump should therefore be adapted to this.
The pump can be made of plastic or bronze. The bronze pumps are much more expensive, but on the other hand, of higher quality. The smaller pumps are driven on a phase, while larger pumps often require a three-phase outlet. An important part of the choice of circulation pump is also the noise level.
Anyone who wants to, can also let the circulation pump lead the water through a heater. The heating can be done via an air / water pump system, solar collector, heat exchanger or electric heater. Which option is the best depends on many factors. Energy consumption can be large for example electric heaters. On the other hand, the various environmentally friendly options are often more expensive to buy. However, in a longer perspective, they usually pay off quickly.
In addition to the circulation pump and pool filter, a complete system requires connections, overflow and inlet. When purchasing pools, this often comes with, alternatively, can be purchased in complete systems. When individual products become broken or for other reasons need replacing, it is possible to purchase the different parts separately.